Casing spider and slips



B. F. KELLEY. CASING SPIDER AND SLIPS.

APPLICATION FILED DEC.27, 1920' Patented Jan. 31,1922.

3 SHEETS-SHEET 1- ,3. zzf'ezmy ATTORNEY WITNBSES:

B.F. KELLEY. CASING SPIDER AND SLIPS. APPLICATION FILED 050.27, 1920.

ATTORNEY WITNESSES:

B.. F. KELLEY. CASING SPIDER AND SLIPS.

APPLICATION FILED DEC-27,1920- Patented Jan. 31, 1922;

3 SHEFTS-SHEET 3- WITNESSG 5 UNITED .sTAr l:. s

BE JAMIN r. KELLEY, or TULSA, OKLAHOMA.

CASING. SPIDER AND s'LIPs.

Specification of Letters Patent. Patented J an, 3-1, 1922.

Application filed December 27, 1920. Serial No. 433,468

To all whom it may concern:

Be it known that I, BENJAMIN FRANKLIN KELLEY, a citizen of the UnitedStates, residing at Tulsa, in the county of Tulsa and State of Oklahoma,have invented new and which pull the casing from the well, to

hold the casing against slipping when new grips are to be obtainedthereon.

It is the object of this invention to simplify and improve the existingart byproducing a mechanism wherein the slips are positively guided tocasing engagement and are automatically brought to release position bymeans associated with and operated by the main pull line when the latteris in taut condition by the weight of the casing to which'it is hitched.

It is a further object to produce in a casing spider and slip,weightedmeans for influencing the slips to casing engaging'position,guide means for said slips, swinging "means for bringing the slips tocasing re 35 lease position, automatic means influenced by the pipelowerlng means fOr'mfluencmg the swinging and weighted means to retainthe slips in release position, and manually operated means forinfluencing the swinging means to permit'of theslips engaging the casingto hold the same, regardless of the, taut condition of the casinglowering means; i i I The invention further resides in the novelconstruction, combination and operative arrangement of parts.

The foregoing, and other objects which will appear as the nature of theinvention is better understood, may be accomplished by a construction,combination and association of elements such as is disclosed by thedrawings which accompany and which formpart of'this application.

In. the drawings';

Figure 1 is an elevation of the improve- Figure 2 is a greatlyenlarged'sectional view on the line 2-2 of Figure 1, looking downward.

Figure 3 is a sectional view on the line 33 of Figure 2.

Figure 41-. is a detail sectional view on the line t-l of Figure 2.

Figure 5 is a side elevation ofthe guide.

housing.

Figurefi is a plan view showing the arrangement of the slips whenassociated.

Figure 7 is a plan view of the spider.

,cment arranged in gripping position with .a well casing, parts being insection, and parts being broken away; a useful Improvements in CasingSpiders-and Slips, of which the following is a specifica- Resting onsuitable'beams v1 is a spider 2,

that constitutes one of the elements of the improvement. fThe spider hasat diametrically opposed points outstanding lugs 3 to which arepivotally'secured bails 4, whereby the device may behandled. Forlessen-v ing the weight of' the spider, the lugs preferably have theirupper facesrentrally depressed or grooved longitudinally.

' The spider has .its cylindrical bore 5 flared inwardly from the top tothe bottom thereof, and in the said bore there is aliner 6 that has itsouter surface resting on the bore '5 and flared complementary with. the

flared bore of the said spider. The bore of thefliner 6 is also flaredfrom the top to the bottom thereof, the said borebeing in .dicated bythe numeral 7. Preferably the V linerfslightl'y increases inthicknessfrom the upperltothe lower end thereof,-;and its .said

lower end is" beveled or, flared inwardly, as

atSto thebore'7..f p

Screwed "n suitable openings which are 'arran-ged at diametricallyopposed points on the upper face offthe spider and: which are projectinglugs 31" of the said spider, are

guide pins 9 for the lifting ring 10 of the arranged right 'ang'ularlywith respect to the.

as at 1 1, to .the upper face of the spider. 2-

is a guide housing 12. The guide housing is in the form of aninvlertedicupshaped member including afflat. base 13 that is flangedboth'inwardly and outwardly with respect to thetubular body 14 of theguide housing. The tubular body has spaced openings therethrough, andthe portions 15 provided between the openings are reinforced, on theirouter faces by ribs 16. The annular top of the guide housing isindicated by the numeral 17, and the central opening therethrough hasits walls, from the top and bottom edges thereof flared inwardly, as at18 and 19 respectively. The web portions 15, provided betweentheopenings in the body of the guide housing have their upper portionsextending angularly to the annular or ring-shaped top of the housing,and each of these portions has an integral tubular boss 2O thereon whichis connected to the ribs 16 and to the top of the housing. Each of thebosses has its bore 21 arranged at an inward angle with respect to theguide housing, and through each of the said bores there is arranged forslidable movement a guide pin 22 that has its lower end threaded andscrewed in threaded openings in the widened top portions of therespective casing slips 23. As disclosed in Figure 6 of the drawings,four casing slips are employed. Each of the slipsis segmental in plan,having its inner face toothed, as at 24 and its outer surface flaredinwardly from the .top to the bottom thereof, as at 2 5. The flaredsurfaces 25 are complementary with the flared bore 7 of theliner6,beingdisposed in contacting engagement with the said bore. Byreference,.especiallyto Figure 6 of the drawings, it will be seen thatthe'confronting ends of the casing slips are out ofcontactingengagement, and also that each of the slips, to the opposite sides ofthe threadedopenings 26 that receive therein the angularly arrangedguide pin 22, has additionalcor reduced threaded openings 27. In thepairs of openings 27on each of theslips there are screwed eyes 28, whichreceivetherethrough links 29, the said links being also'connected to eyebolts 30 that pass through openings and are secured by nuts 31, oninwardly directed 'ear portions 32 on the top flange of pthe liftingring 10. reference, especially Ilargements or bosses 1 34 fatdiametrically to Figure 2 of'the drawingsflt will beseen that the topflange of the lifting ring is scalloped from the inner edge thereof sothatqcomparatively deep openings 33 are provided between the,inwardly'projectin'g portion which I have termed cars 32. Four of theopenings 33 are arranged to receive therethrough an I angularly arrangedguide pin of the casing slips. The lifting gu de, p1ns 9 pass throughopenings infenpo'sed points on the ring outward; of the .guidehou sin 12. The lifti, 11g'-,rin,g 10 has ts sides, in a line .with the'bosses34:, pro- ,vided ,with outwardly projecting {hub ,por-

,to which are .connected, as .at 36 oepending hnks 37. Each 'link 37 hasits .movement.

body portion arranged at a slight outward v angle, but its ends arestrai and the lower straight ends are pivotal y connected, as at 38 tothe sides of a spider lever 39.

The spider lever is in the nature of a split the wellcasing tubesections are received. The casnw sh as bein constructed of metal a a gare comparatively weighty, "but additional weight is imparted thereto bythe lifting ring 10 which is substantially hingedly .connected to thecasing slipsby thelinks 29 so that the casing slips'will he forced down.

wardly in alignment, and the toothed inner faces thereof willnormallyengage the zcas ing 45 to hold the casing againstdownward The teeth ofthe casing slips comprise straight horizontal shoulders and walls being;directed upwardly permit of the upward movement of the casing 45. Suchmovement .ivould,of course, slightly angle Walls between the shoulders,the angle move the casing slips in an upward direc" tion. The casingslips are positively guided at a desired angle to bring the saineaway 7from the casing 45,, throughsthe inediiimof the pins 22, and theinfiared portion at the end of the bore ofthe liner (Spermits of a freepassage of the casing scctions tti and their couplings {16 either ina'njupward or a downward .dlrcction. being gulded by the lifting-ringguide plns The liftingring,

9 will also be raisedin a perfectly horiz'ontal position whenannpwardpressure is applied to the vbailend of thespider lever.39.

.A portion of ;the derrick floor, is in dicated inFigure 1 of the.drawings by ,the

numeral 45. The derrick floorhas'an opening 4 -6-therethrough for'thejcasing sections 45 and their couplings 46. ,Toxone side of theopenings 46 the floor, 45 has another 2 opening 47 innvhich, isarrangedguide pulleys 48 for a cable 49 that issecured, as atf50;{-.

a lever 52. This leve xhas :annpset .end.53

tothe spider lever 39.; On the cable there is Pivoted, as at. 51, to. a

that passes through anopening, 54 in the;

floor 4:5. The angle end v53 of the lever is headed, .as'at 5.5 Thelever is provided with a 'laterally extended ,or' w dened portion 56-,having an opening through wh ch arable 49 passes. The widenedor eye,por-.-.

tion 56' of the lever normally rests. on the stop. member 50 on thecable 49. a

The upper end of thecable 5L9 ,is" connected to one end of the helicalspring 57.

moved downward in the liner so that they pending element 61' therefor.This, of

in such condition when supporting the easmove the latter out of easingengaging {pothe well. In alike manner, by reversing the in; thecables'for the spiderlev'er will be To the opposite end of the springthere isfla second cable 58 which is secured to a down- Wardly directedangularly disposed ear'59 on the upper end and at the lower corner of ahollow substantially :rectangular member 60. The corner of the member 60diagonally opposed to that provided with the ear 59, has an upstandingear 61 to which is connected a short rope or cable 61 that is Woundaround and secured to the first girt 62 of the derrick, as indicated bythe numeral 68. The member 60, adjacent to its lower end has journaledtherein peripherally grooved guide wheels 64 for the main pull line 65that is connected to the ground pulley of the derrick (not shown). Theline 65 is guided through the body of the member 60 'under a groovedsheave 66 which is journaled atthe upper corner of the said member 60.The line 65 is hitched to one of the casing sections 4c5, The member 60not only provides a guide for the pull line 65, but being hingedlysupported by the element 61 on the girt 62, and being influenced to anangular position by the spring 57 of the cables 49 and 58, serves as acontrol means for bringing the slips either into or out of casinggripping position. I

When the member 60 is in angular posi- 7 tion, as illustrated in Figure1 of the drawings, the spring influenced cables connected to the spidermember permit of the latter, assunning its normal inactive position, thesame resting on one of the lugs 3 of the spider. Thus the weightinfluenced casing slips are are in gripping engagement with the casingsection 45. When the'main pull line 65 is drawn taut, the member 60will'be swung to vertical position along the side of the suscourse,occurs when the main pull line 65 is in its straight and taut condltion,and it is ing sections for lowering the same into the well. The swingingof the member 60 causes pull on the spring influenced cable "that isucon'nected'to the spider lever 39,

swinging the latter upon its pivots'tl, causing the same through themedium of the links 17 to move'in an even upward vertical direction thelifting ring 10 which latter, by its link connection with the casingslips, will sition. Thus the casing may be lowered in =movement of thepull line 165. the casingmay' be withdrawn from thewelh Should the pullline become broken, the member 60,

through the medium offthe springconnectagain swung to theposition'illustrated in "Figure l offthe drawings, slacking the lastm'en'tioned cables and permitting the spider "lever to drop-by gravityand 'carry therewith the ring" 110 and the casing slips 23, the latterbeing forced in pipe engaging position by the link connection betweenthe same and the lifting ring 10, but are, as previously stated,

properly guided by the pins 22. Aga'in,

when the pull line 65 is taut and the member 6O swung to verticalposition, should it be found desirable to prevent the lowering of thespring 57, slacking theportion of the said cable below thesto'p 50",permitting the spider lever, ring and easing slips to swing or gravitatedownwardly so that the casing slips will be brought into casing gr ppingposition.

It is believed that the foregoing description, When taken in connectionwithfthe drawings will fully set forth the simplicity and advantages ofthe improvement to those skilled in the art to which such inventionsrelate so that a furtherdetailed description is not considerednecessary. It is considered,

however, necessary to state that the drawings and description refer toa-satisfactory embodiment of the improvement asit now appears to me, andthat I may 'a'tj'a later date,

make suchchanges therefrom as fall within the scope of what is claimed.Having described the invention, I claimz- 1. In an apparatus of.the'class described,

the-combination of a casing'to belowered or a raised, casing slipsiiormally engagingthe casing, guide" means "therefor," weighted meansassociatedwith each other, and with the slipsfor retaining the'slips incasing engaging position, flexible. operating means for said lastmentioned means, a pivotally supported member connected 'witlisaidflexi- "ble means and normally retained by the lat ter in an angularposition, apuu line guided through said member andxhitched' to theeasing, operating means for'fthe'pull' lin'e,and*

said pull line, when drawn taut, by the operating means and the weight.of the dis ing to which it ishitchedgadapted to swing the pivotedmember in an upward direction to draw on the. flexiblemeans to operatethe means associated therewith 'andbringjthe slips to non-casingengaging position;

2. In an, apparatus of the class described,

means therefor, pivoted means engaging the an angle when'the operating,means for the pull line been ,halted; and the' pull line slackened,'me'an's foiimov'ing the isli'ps 'to non-casing engaging position,and'operating means between said, last mentioned means and said pivotedmeans whereby, when the 'pull line is drawn taut 'ancl 'the said"pivacasing to be raised or lowered, weighted I toothed slips normallyengaging the I a pull line hitched to'th'ejcasing, operating iso otedmeans is moved thereby to an upward and substantially vertical position,to influence the last mentioned means to actuate the slip operatingmeans and bring said slips to non-casingengaging position. 7

3. In an apparatus of the class described, a' well casing to be raisedor lowered, a

, spider, slips therein normally engaging the casing for holding the'casingagainst movement in a downward direction and for permittingmovement of the casing inan upward direction, means influencing theslips for bringing the same to casing engaging position, apulllinehitched'to the casing, a, pivotally supported member through which thepull line is guided, means connected tosaid member and the slipinfluencing means for causing the said member to assume an angularposition when'the pull line is taut or broken and to also cause theslips to engage with the casing, and said pivoted member adapted whenthe pull line is drawn taut to be swung substantially vertically anddraw upon the operating means for the slip mfluencmg means to ac-' tuatethe latter and bring the slips out of casing engagement. 1

4. ;In an apparatus ofthe classdescribed, a well casing to be raised orlowered, a spider surrounding thecasing, slidable slips therein normallycontacting the casing for holding the sameagainst outward butrper theflexiblemember passes, and said lever having its eye normally resting onthe stop, the guide member {for the pull cable designed, when the cableis drawn taut to be swung upon its pivot to draw on the springinfluenced flexible element to cause the latter ,toactuate the slipsinfluencing means and bringtheslips out of casing engagement, and thesaid lever, when actuated,

' designed to expand the spring of the flexible member to slacken theportion thereof below the stop to permit of the slip influencing meansto bring the slips to casing engaging -,;position. 7 v

5. Inanapparatus oftheclass described, the {combination with a wellcasing. to be raised or lowered, weighted casing slips engaging thecasing, directing means therefor, guide means for the slips, meansmovable toward and away from the slips looselyvassociated with saidslips, swinging means lmove the pivotallyfsuppo'rted means to aconnected with said movable. means, flexible spring influenced operatingmeans for the swinging means, pivotally supported means connected tosaid flexible means, and normally retained at an angular position bysaid flexible means, a pull line guided through the pivoted means andhitched to the casing, operating means therefor designed to draw thepull line taut and to move the pivotally supported means to a positionto draw on the flexible means to influence the swinging and movable,meaus to bring the slipsmtoQn'on-casmg engaging position, a v

6. In an apparatus of the class described, the combination with a wellcasing to be raised or lowered, weighted casing slips engaging thecasing, directing means therefor, guide means for the slips, meansmovable toward and away from the slips loosely associated with saidslips, swinging means connected withisaid movable means, fflexiblespring influenced operating means for the swinging means, pi'votallysupported means connectedto said flexible means, and nor 'mally retainedat an angular position by said flexible Vmeans, a pull line guidedthrough the pivotedmeans and hitched to the casing, operating meanstherefor designedtodraw the pull line taut an'dto position to draw onthe flexible-means to influence the swinging and, movable means to bringthe slips to no'n-casingengaging position, and manually operated meansengaging an element on said flexible means for permitting the slackingofsaid flexible means below said element to permit of the meansassociated with the slips for return-' ing the latter to casing.engaging position 7 regardless of the tightening or slackening on thepullv line. I I

7 In an apparatus ofthe class described, a spider having a downwardlytapering opening, a tapered liner therein having its lower end flaredinwardly, toward the reduced portion of the bore thereof, a well casingsection to be raised or lowered pass- 1ng through the liner, casingslips com- 'prisingspaced segmental member's"having their inner facesformed withtransverse teeth, and their outer surfacestapered to engagewith the tapered'bore of the liner, a guide housingsecured on thespider, a

lifting ring surrounding the guide housing,

guide pins between the spider and the guide ring, angularly arrangedguide pins between -the'respective slips'and the guidehousing, pivotedlinks between the lifting ring and the respective casing slips, a spiderlever comprising'ia split ring member whichxhas its ends pivotallyconnected to the spider,

a1 pivoted link-connection between thesides of the spider lever and thevlifting ring, ;a

,divided cable hav ng. one of its ends secured 1,30

to the spider lever, a spring connecting the and hitched to the pipecasing, and operatconfronting ends of the cable, a pivotally ing meansfor said guide line, all as and supported guide member to which theopfor the purpose set forth. v 10 posite end of the cable is connected,astop In testimony whereof I aflix my signaon the lower cable member, apivotally ture.

supported lever engaging said stop, apull i 7 ,7 line guided through thepivoted member BENJAMIN F. KELLEY.

